Improvement in flow-ciievis



para can.

JoHN A'DoLPn BILZ, oFPLEAsANToN, CALIFORNIA.

" Lette/rs Patent No. 90,068, dated .Ma/y 18, 1869.

IMPROVEMENT IN PLOW-chews.

The Schedule `referred to in these Letters Patent and making part of thename.

To all whom 'it lrml/y concern:

Be it known that I, J cnn Anonrn BILz, of Pleasanton,- county ofAlameda, State of Oalifornia,'have invented anImproved Plow-Beam Olevis;and I do hereby declare the following description andaccompanyingdrawings are sufiicient to enable any person skilled in theart orscience to which it most nearly appertains',ito make and use my saidinvention or im-` provernent without further invention or experiment.

My invention relates to a new and improved clevis for plow-beams, sconstructedthat the depth to which it is'desired to run the plow can beregulated as desired, by simply raising and lowering a bar, and con-`ning it `by means cfa set-screw.

. It also consists in attaching to this silding bar a shackle with aswivel-joint, to which the double-tree is screwed, and which turns, soas to allow the double# tree to remain in its proper position, inwhatever mauner the plow may be turned. d

,'To morefully illustratemy invention, reference is had to theaccompanying drawings, forming a part of this specification, of whichfFigure l is aside sectional elevation.

Figure 2 isa front view. p

Similar letters of reference in each of the figures indicate like parts.p 4 l A and B are the two arms of a clevis, and which 'are `attachedtothe end of the plow-beam, the arm -A being placed on the upper, and thearm B on theV lower side of the beam, and secured `by a screw, 0,*whichpasses through the beam similar-to that used in the ordinary clevis. A

The plow is thrown to or from the land, in the usual manner, by shiftingthe pin D from side to side, and `placing it in holes prepared for thepurpose.

means of a screw, c, which passes through the slot a and the lower endof the sliding bar E, andis secured and for the purpose described.

by a nut. The shackle is secured byaswivehjoint to4 .f

the screw, so that it will turn in any direction.

When the sliding bar E is raised or lowered', the screw moves in theslot a. The bar is held at any point desired by a set-screw, e.Thedep'th which it is desired to run the plow is regulated by moving thesliding bar up, if desired to plow deep, or downif desired to plowshallow, and keeping itin place by the set-screw c at the top of thevertical bar E. f v

By the use ofthe shackle and swivel-joint, the doubletree, which issecured to the shackle, is allowed to remain in its proper position atall times; for instance,

when it is desired to let the horses stand for a time, the plow isgenerally thrown over on its side, and when the ordinary clevis is usedthis motion turns the doubletree, and causes the tugs tostrike thehorses legs,

,frequently resulting in runaways,`which cause much damage, but when myclevis is used, and the plow is 's thus vthrown down on its side, theshackle will turn,V

and allow the double-tree to remain in its vproper position.

Having thusdescribed my invention, What I claim, and desire to secure byLetters Patent, is a 1. The vertical slotted bar E, secured to the endsof the two arms A and B of a clevis, substantially as 2. The sliding barF,moving up and down through slots in said arm A and B, and held at thepoint desired by means of a set-screw, g,`substantially as and for thepurpose described.`

3. The. shackle G, attached by a swivel-joint to the screw c, said screwbeingsecured to the lower end' of the sliding bar F, and moving up anddown inthe vertical slot a, substantially as and for the purposedescribed.

In witness whereof, I have hereunto, setmy hand and seal.

JOHN A. BILZ. [1.. s] Witnesses: t

J oHN L. Boone, p

W.y STANIFORTH.

